/*-------------------------------------------------------------------------
 *
 * pg_collation.h
 *      definition of the system "collation" relation (pg_collation)
 *      along with the relation's initial contents.
 *
 *
 * Portions Copyright (c) 1996-2017, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * IDENTIFICATION
 *        src/include/catalog/pg_collation.h
 *
 * NOTES
 *      the genbki.pl script reads this file and generates .bki
 *      information from the DATA() statements.
 *
 *-------------------------------------------------------------------------
 */
#ifndef PG_COLLATION_H
#define PG_COLLATION_H

#include "catalog/genbki.h"

/* ----------------
 *        pg_collation definition.  cpp turns this into
 *        typedef struct FormData_pg_collation
 * ----------------
 */
#define CollationRelationId  3456

CATALOG(pg_collation,3456)
{
    NameData    collname;        /* collation name */
    Oid            collnamespace;    /* OID of namespace containing collation */
    Oid            collowner;        /* owner of collation */
    char        collprovider;    /* see constants below */
    int32        collencoding;    /* encoding for this collation; -1 = "all" */
    NameData    collcollate;    /* LC_COLLATE setting */
    NameData    collctype;        /* LC_CTYPE setting */
#ifdef CATALOG_VARLEN            /* variable-length fields start here */
    text        collversion;    /* provider-dependent version of collation
                                 * data */
#endif
} FormData_pg_collation;

/* ----------------
 *        Form_pg_collation corresponds to a pointer to a row with
 *        the format of pg_collation relation.
 * ----------------
 */
typedef FormData_pg_collation *Form_pg_collation;

/* ----------------
 *        compiler constants for pg_collation
 * ----------------
 */
#define Natts_pg_collation                8
#define Anum_pg_collation_collname        1
#define Anum_pg_collation_collnamespace 2
#define Anum_pg_collation_collowner        3
#define Anum_pg_collation_collprovider    4
#define Anum_pg_collation_collencoding    5
#define Anum_pg_collation_collcollate    6
#define Anum_pg_collation_collctype        7
#define Anum_pg_collation_collversion    8

/* ----------------
 *        initial contents of pg_collation
 * ----------------
 */

DATA(insert OID = 100 ( default        PGNSP PGUID d -1 "" "" _null_ ));
DESCR("database's default collation");
#define DEFAULT_COLLATION_OID    100
DATA(insert OID = 950 ( C            PGNSP PGUID c -1 "C" "C" _null_ ));
DESCR("standard C collation");
#define C_COLLATION_OID            950
DATA(insert OID = 951 ( POSIX        PGNSP PGUID c -1 "POSIX" "POSIX" _null_ ));
DESCR("standard POSIX collation");
#define POSIX_COLLATION_OID        951


#define COLLPROVIDER_DEFAULT    'd'
#define COLLPROVIDER_ICU        'i'
#define COLLPROVIDER_LIBC        'c'

#endif                            /* PG_COLLATION_H */
